Fan



FIG. 1 shows an elevated top view of a first embodiment of the design.

FIG. 2 shows an elevated bottom view of the embodiment of FIG. 1.

FIG. 3 shows a top plan view of the embodiment of FIG. 1.

FIG. 4 shows a bottom plan view of the embodiment of FIG. 1.

FIG. 5 shows a front view of the embodiment of FIG. 1.

FIG. 6 shows a left side view of the embodiment of FIG. 1; and,

FIG. 7 shows a right side view of the embodiment of FIG. 1. 

The ornamental design for a fan, as shown and described. 